Stratigraphic sections of Jurassic San Rafael Group and adjacent rocks in Grand County, Utah

These sections were measured prior to 1960, before adoption of the metric system. Publication was delayed by other assignments of the authors and later by the untimely death of J. C. Wright. They are being released at this time because of the increased interest in the uranium potential of Jurassic rocks. The Summerville Formation and Entrada Sandstone are the only formations in the San Rafael Group that are present in these sections.